Much research has also been conducted on everolimus and other mTOR inhibitors as targeted therapy for use in a number of cancers. It is marketed by Novartis under the tradenames Zortress (USA) and Certican (Europe and other countries) in transplantation medicine, and Afinitor in oncology. Everolimus also available with Biocon with the brand name of Evertor.
Female fox and gray squirrels that are at least two years old have two litters per year, younger females have only one litter per year. Average litter size is two to four (southern flying squirrels may have litters of up to seven young), with young weaned around eight weeks of age.
Birthing: 2-5 per litter, 2 litters a year: February-April and July-September. NOTE: Squirrels tend to build nests in attics, chimneys, tree trunks, or leaf nests in trees. Generally they build two or three nests so that they can move their babies if the nest is threatened or the nest becomes infested with fleas. Generally, the mother will move the babies to a new nest at around six weeks of age.